Basics & Puzzles

Raj is hungry and he wants to cook Maggi. He saw TV advertisement that we can cook maggi in 2 minutes. He have two sand hourglass, one that measures 7 minutes and other measures 4 minutes.  Using these two hourglass how he can measure exactly 2 minutes to have maggi ?

The average age of 10 members of a committee is the same  as it was 4 years ago, because an old member has been  replaced by a young member. Find how much younger is  the new member ?

A person drives with constant speed and after some time he sees a  milestone with 2 digits. Then travels for 1 hour and sees the same 2  digits in reverse order. 1 hour later he sees that the milestone  has the same first 2 digits with a 0 between them. What is the speed of  the car? 

We have ten sacks and each of sack having 1000 coins. Each coin weighs 10 grams. One of sack is having faulty coins whose weight is 11 grams. We have to find out faulty sack. We can use weigh machine only one time. How to find faulty sack ?

The image shows a huge Bengal Tiger standing in a bamboo forest.  Your mission is to look for "The Hidden Tiger" in the image below.

Two classmates Ram and Shyam met in a street after many years.  The following is part of their discussion. Ram: Yes, I'm married and have three wounderful children. Shyam: That's great! How old are they? Ram: Well, the product of their ages is 36. Shyam: Hmm. That doesn't tell me enough. Give me another clue. Ram: OK. the sum of their ages is the number on that shop  across the street.. Shyam: (After a few minutes of thinking) Ah ha! I've almost got it but I still need another clue. Ram: Very well. The oldest one has red hair. Shyam: I've got it! What were the ages of the children of Ram?

You are a crime investigation officer breaks into a crime  scene. The victim is the owner   who is  slumped dead on a  chair and have a bullet hole in his head. A gun lies on the  floor and a cassette recorder is found  on the table.   On pressing the play button, You hears the message   'I have committed sins in my life and now I offer my soul to  the great lord'....following a gunshot.   What do you think is it a Murder or Suicide ? Answer with  valid reason.